Clincher plate for nailing machines



Jan. 14, 1930. A E. AUBERT 1,743,513

GLINCHER PLATE FOR. NAILING MACHINES Filed May 2, 1927 Patented Jan. 14, 1930 UNITED .STATES PATENT OFFICE EMILE ALIBERT, OF PARIS, FRANCE, ASSIG'NOR TO COMPAGNIE DE MACHINES AUTO-V i MATIQUES SAVINGMA, F PARIS, FRANCE y CLINCHER PLATE FOR NAILING MACHINES Application vfiled May 2, 1927, Serial No. 188,369, and in France May 8, 1926.V

The present invention relates to a clincher plate for nailing machines, which is essentially characterized by the combination of a base plate and a clincher plate support sc-v cured to said plate, and a movable member which may be disposed in a recess formed by the assembling of the aforesaid members,` and also a work support-ing member which is fitted upon the whole with a certain play. The invention further relates to a control for the movable member which controls the position of the work supporting members and includes a cam actuated lever attached to a vertical shaft carrying a lever connected by a link connection to the movable member.

The invent-ion is illust-rated in the accompanying drawings, in which:

F ig. 1 is a View in elevation of the inven- 1 tion. Fig.

2 is a top plan View of the same.

Fig. 3 is a plan view of the operating means for the control of the nailing frame.

Fig. 4 is a section on line 4-4 of Fig. 2.

As observed in the drawings, the device comprises the following parts:

1. A cast iron base plate 1 by which the device is secured to the main frame of the machine by means of the lugs 2.

l 2. A stationary cast iron clincher plate support 3 mounted on the base plate 1; to

which member is secured the tempered steel clincher plate 4.

3. A movable member 5 which can be displaced in the recess which is formed by the assembling of the base plate 1 with the stationary clincher plate support 3. To the movable member 5 are secured two cams 6 for the control of the work supporting member. Y

4. A work supporting member which is fitted without pressure upon the device formed by the base plate 1 and the stationary clincher yplate support 3; said frame consists of two cast iron cheeks which are ii assembled by two steel plates 8 by means of the screws 9. In the cheeks 7, at determined points, are formed four apertures 10-two on each side and properly in line for the insertion of the rings 11 which are provided with shoulders and are held at the exterior by screws, said rings being exactly in line with the said cheeks in the interior. Into the rings 11 are fitted two temperedwsteel axles 12 which extend through the frame; said axles 12 support the tempered steel rollers 13 coacting with the cams 6.

The device for the control of the said clincher plate comprise the following parts:

1. A two-part cam 14 of determined shape, which is secured to the shaft of the machine actuating the member 35.

2. A lever 15 on one end of which-on a determined side-is mounted the tempered steel roller 16v which is rotatable on a tempered steel axle 17 secured to the lever vextending outwardly. y

The lever 15 is controlled by the cam 14 either directly by means ofthe roller 16 or through the medium of a device which is verticallymovable on the axis of the cam, it is held in contact with the cam vby t-he double-tapered spring 18 which is secured at one end to the axle 17 and at the other end to a lug 19 which is mounted on the main base of the machine 20;the tension of said spring is regulated by the wing nut 21. The said spring may be replaced by a cam which forms the complement of the cam 14 (both cams operating at the exterior) or these two external cams might be replaced Y by a ycam with internal operative surface, the device controlling the lever being displaced horizontally.

3. A cylindrical shaft 22- in which two axial grooves 23 are milled to a suitable' Vdepth and upon a determined length; said shaft thus held is pivotally mounted, and its bearing consists of the lower face of thek lever 15 to which it is secured.

4. Theilever 27, V:in whose boredaperture ice i are mounted two keys 28 which correspond exactly to the grooves 23; the lever 27 is slidable with easy friction'on the shaft 22 and is controlled by said shaft by means of the grooves 23 and the keys 26, irrespectively of they position ofthe operating table.

5. A connecting element or link which connects the controlling device with the plate, and comprises a forked bracket 29` mounted on the end of the lever 27 byY means of ther axle 30. traversing the said bracket and lever with anvadjusted fit; it further comprises a shaftv 31 which 'is screw threaded atV each end -and is secured atv one end'to the forked bracket 29 and at thel other end to the forked bracket 32 which is secured to the shaft 33 which vis provided with a shoulder and'is suitably milled, and serves to actuate the movable member 5, inwhich it is secured.

. The bracket 32 is secured to the axle 33 bythe axle 34. I

36 indicates one of the uprights to which the operating table is secured. Y

When the machine is in the inoperative Vposition, the movable member 5 is brought'` to the end of its stroke. On the left hand Y side, the cams 6 'pass below the rollers 14 which are rotatable on the aXles 12 control- `ling the work supporting members; said frame when in this position will .extend outwardly of the clincher plate4.`

position, the cams 6 are engaged below the rollers V13 which raise the work supporting `members? by means of the axles 12 upon Y which they are rotatable.

With the machine thus disposed, the obvjects to be assembled and riveted bymeans of nails orv like pointed pieces of a determined' length are mounted on the work 4supporting members 7 For thispurpose theV operator presses down the clutching pedal of themachine, so that the .shaft 35 will actuate" the vpart Vby .whichy the .Y nails are driven; during its rotation `it actuates th cam l14 which issecured thereto; j In a determinedA position accordingv to the degreeof drivingof thenails, the cam 14 impels the lever 15, and .this latter-due to theV action of the control-impels the movable member V5 for the releasing of the cams G; herein the cross-piece 3 which/is no longer supported. will descend and the nails will turn down and become clinched' upon the clincher plate 4 which'is applied upon the said plate by the plungers of the machine.

When the shaft 35 has made a completev revolution, the movable member rises and the lever is now in the stopping position controlling the whole of the plate.

I. claim: i

1. In combination with a nailing machine, a base plate secured to the frame of the machine, a clincher plate support mounted on the base plate so asto provide a recessber comprising a two-part cam mounted on` the driving shaft of the nailing machine, a lever engaged by and positioned through the movement of said cam, a shaft mounted for rotation andcontrolled by said lever, and a connection between said' shaft and said movable member. Y'

In testimony whereof I affixV my signature. EMILE ALIBERT. l 

